Who owns Mediaco Holding Inc.?
Prices and market caps: Cboe delayed data, at least 15 minutes delayed. Not real-time. Fundamentals from company filings.
Institutional ownership of MDIA from SEC Form 13F filings across 19 reporting managers. All positions are from one synchronized reporting period — 2026-06-30 books, filed up to 45 days after quarter end — so every row is comparable.
As of the 2026-06-30 reporting period, 19 institutions disclosed 71.1M shares of Mediaco Holding Inc. worth $70.1M — about 86.1% of shares outstanding; the largest disclosed holder is Standard General L.P.. Source: SEC Form 13F filings, parsed by EvidInvest.
19
13F holders
$70.1M
value, 2026 filers
86.1%
of shares outstanding (71.1M sh)
3
new positions (2026 filers)
Top institutional holders
ordered by shares owned · positions as of 2026-06-30 · % of fund = share of the manager's own book · % of co. = share of MDIA's shares outstanding
| # | Manager | Shares | Value | % of fund | % of co. | Δ shares QoQ |
|---|---|---|---|---|---|---|
| 1 | Standard General L.P. | 35.4M | $34.9M | 7.3% | 42.9% | 0.0% |
| 2 | BlackRock, Inc. | 35.3M | $34.8M | 0.0% | 42.7% | 0.0% |
| 3 | GEODE CAPITAL MANAGEMENT, LLC | 96,397 | $95,164 | 0.0% | 0.1% | -16.4% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 70,508 | $69,521 | 0.0% | 0.1% | +116.3% |
| 5 | MILLENNIUM MANAGEMENT LLC | 62,147 | $61,277 | 0.0% | 0.1% | -30.4% |
| 6 | VANGUARD FIDUCIARY TRUST CO | 49,246 | $48,557 | 0.0% | 0.1% | 0.0% |
| 7 | CITADEL ADVISORS LLCNEW | 28,302 | $27,906 | 0.0% | 0% | new |
| 8 | NORTHERN TRUST CORP | 18,274 | $18,018 | 0.0% | 0% | +31.9% |
| 9 | STATE STREET CORP | 16,659 | $16,426 | 0.0% | 0% | 0.0% |
| 10 | XTX Topco LtdNEW | 10,375 | $10,230 | 0.0% | 0% | new |
| 11 | Tower Research Capital LLC (TRC) | 6,596 | $6,504 | 0.0% | 0% | +27.3% |
| 12 | Vanguard Global Advisers, LLC | 1,726 | $1,702 | 0.0% | 0% | 0.0% |
| 13 | ROYAL BANK OF CANADANEW | 1,000 | $1,000 | 0.0% | 0% | new |
| 14 | UBS Group AG | 231 | $228 | 0.0% | 0% | -99.6% |
| 15 | MORGAN STANLEY | 200 | $197 | 0.0% | 0% | -1.5% |
| 16 | Allworth Financial LP | 32 | $32 | 0.0% | 0% | 0.0% |
| 17 | HARBOUR INVESTMENTS, INC. | 19 | $19 | 0.0% | 0% | 0.0% |
| 18 | JPMORGAN CHASE & CO | 3 | $3 | 0.0% | 0% | -100.0% |
| 19 | WELLS FARGO & COMPANY/MN | 0 | $0 | 0.0% | 0% | — |
Source: SEC Form 13F-HR filings (institutional managers over $100M in US-listed positions). 13Fs disclose long positions only, up to 45 days after quarter end; each manager's latest filed quarter is shown per row and dollar values are the manager's filed marks. Aggregates labeled "2026 filers" count only managers whose latest book is a 2026 quarter. Related: valuation · options positioning · supply chain. Research, not investment advice.